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baherus [9]
3 years ago
11

I have a problem with Instagram.

Computers and Technology
1 answer:
krok68 [10]3 years ago
5 0

Answer:

developer tool

Explanation:

if you're using chrome click on the 3 dots that's in the top right corner and go to tools, you will see "developer tools" and click on that, then you will see an icon that shows a laptop/computer and an iphone click on that and you can even choose the type of phone you wish to see the view of (ex. iphone X), refresh the page and you will be able to see the direct message icon and you will be able to message your friend.

good luck.

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If 209g of ethanol are used up in a combustion process, calculator the volume of oxygen used for the combustion at stp​
SOVA2 [1]

Answer:

a) The volume of oxygen used for combustion at STP is approximately 305 dm³

b) The volume of gas released during combustion at STP is approximately 508 dm³

Explanation:

The given chemical reaction equation for the burning of ethanol in air, is presented as follows;

2CH₃CH₂OH (l) + 6O₂ (g) → 4CO₂ (g) + 6H₂O

The mass of ethanol used up in the combustion process, m = 209 g

The molar mass of ethanol, MM = 46.06844 g/mol∴

The number of moles of ethanol in the reaction, n = m/MM

∴ n = 209 g/(46.06844 g/mol) ≈ 4.537 moles

a) Given that 2 moles of ethanol, CH₃CH₂OH reacts with 6 moles of oxygen gas molecules, O₂, 4.54 moles of ethanol will react with (6/2) × 4.537 = 13.611  moles of oxygen

The volume occupied by one mole os gas at STP = 22.4 dm³

The volume occupied by the 13.611 moles of oxygen gas at STP, 'V', is given as follows;

V = 13.611 mol × 22.4 dm³/mole = 304.8864 dm³ ≈ 305 dm³

The volume occupied by the 13.611 moles of oxygen gas at STP, V = The volume of oxygen used for the combustion ≈ 305 dm³

b) The total number of moles of gases released in the reaction, is given as follows;

The total number of moles = (4.537/2) × (4 + 6) = 22.685 moles of gas

The total volume of gas released, V_T = The volume of gas released during the combustion at STP = 22.685 moles × 22.4 dm³/mole = 508.144 dm³ ≈ 508 dm³

7 0
3 years ago
Which library research databases include information about articles published in magazines, journals, and newspapers? question 1
Alecsey [184]

Answer:

periodical databases

Explanation:

Among the various databases you can now access in a library, the periodical databases contains the text and other information about articles published in magazines, journal and newspapers.

This database allows you for example to easily search for all articles written about a specific event or person, and it will return you the list of articles you can then read from a single spot, no matter where or when the article was written.

8 0
3 years ago
Mathematics and computer science share many concepts, such as recursion.
Virty [35]
The answer is B.

Read the answer I posted for your other question on the factorial of 7.
5 0
2 years ago
Pls help I don’t know the answers
kifflom [539]

Answer:

1. DLL Files.

2. System software repair.

3. Software configuration.

4. Human-computer interaction.

5. A graphical user interface (GUI).

Explanation:

1. DLL Files can become lost or damaged on a computer and prevent it from working correctly. These are important registry files used by various system softwares to perform specific tasks.

2. System software repair is a type of software you can run to help fix computer problems. Some examples are disk defragmenter, regedit, etc.

3. Software configuration means the process of setting up an application and selecting specific options. This is usually done in the settings section of a software application or program.

4. Human-computer interaction is the name of the discipline concerned with the design of optimal user interfaces.

5. A graphical user interface (GUI) is what users make use of to interact with graphical icons and other visual elements in order to accomplish tasks.

4 0
3 years ago
Four reasons why computers are powerful
zlopas [31]

Answer:

You could search up almost anything you want

they have a lot of storage

you can find good information

they help you with a lot of things

Explanation:

also how they can process information in seconds

4 0
3 years ago
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